Drinking coffee on an empty stomach is a bad habit
And this has scientific proof.
Our body naturally produces more of the stress hormone cortisol,
which regulates energy, between 8 and 9 a.m.
If you drink coffee before or during this time, it will only make you nervous and confuse your body's natural cortisol control system,
which later leads to a daytime malfunction.
Studies show that the best time for a daily cup of coffee is
after 10 a.m. and before noon.